npm-run-bg

A utility for running variadic background processes from a single npm command. Can make things like running tunnels or small http servers easier on nodejs.

Syntax: npm-run-bg [bg-process-1] ...[bg-process-N] [main-command]

Examples

You can run a tunnel in the background of your end to end tests easily

npm-run-bg 'npm run start-tunnel' 'npm run test-end-to-end'

You can make the main process not begin until the background process gives some output that indicates success, as well as a timeout before which to fail (default 5 seconds).

npm-run-bg 'npm run start-tunnel::Connection Ready::15000' 'npm run test-end-to-end'

You can do this with as many processes as you like.

npm-run-bg 'http-server ./static' 'npm run start-tunnel' 'npm run test-end-to-end'

In the case of multiple delaying mechanisms, the system will launch all processes simultaneously and assume delays are specific to each process. This can be tweaked in the future as needed

npm-run-bg 'http-server::Started Successfully::15000' 'npm run start-tunnel::Connection Ready:1000' 'npm run test-end-to-end'